TorchVision is a package in PyTorch designed to ease the process of developing computer vision applications. It offers a collection of popular datasets such as ImageNet and COCO, along with a variety of pre-trained models that can be easily integrated into projects. Transformations for image preprocessing and augmentation are also included, streamlining the preparation of data for training deep learning models. By providing these resources, TorchVision allows developers to focus on model architecture and training without the need to create every component from scratch.